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I.LK large PLC for medium and large application scenarios, launched in November 2006, is the first large PLC in China. It follows the IEC61131 standard, has obtained the IEC61508 SIL2 functional safety certificate issued by TUV Germany, and passed the Achilles2 information security test. Meet the national network security level protection requirements, used in the field of medium and high performance control.

 The main control unit of Hollysys PLC system has the characteristics of large capacity, high reliability, high performance, fast response, etc. It can be widely used in subway, water treatment, high-end equipment, complex machinery, production line control and other application scenarios. The controller and external redundant IO form a redundant control system to complete data acquisition, logical calculation action execution, human-computer interaction, data exchange and other functions to achieve automation and intelligence.

High reliability

lAdopt two-frame redundancy structure, including power supply redundancy, controller redundancy, network redundancy.

l In redundancy mode, a fault can still run.

lWith good electromagnetic compatibility, field to system, channel to channel isolation measures.

l Has the function of output hold or output preset in case of communication failure.

l All modules are coated with three anti-damp, anti-salt spray, anti-mold performance.

Quick response

l The redundancy switchover time is less than 100 ms.

l The minimum time slice of task scheduling shall not exceed 100 us.

Large capacity

l 124 IO slave stations can be added to a single control station.

lThe system supports more than 10,000 I/O nodes.

Easy maintenance

lThe module information and diagnosis information of each module can be obtained respectively.

lEach module supports hot swap.

l Anti-mixing pins are designed on the backplane to prevent incorrect module insertion.

Openness and flexibility

lSupports a variety of communication protocols, such as TCP/IP, PROFIBUS-DP, MODBUS, DeviceNet, and free port protocols.

lThe open design provides a standard interface for all types of HMI software.

lPowerful expansion ability, users can expand the system according to the actual system scale and functional requirements.

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lMiniaturized design, compact structure, greatly saving the installation space of the system.

lThe wiring terminals are secured to the midplane and are independent of the I/O module. The module can be replaced without repeated wiring.

lHigh integration, built-in a variety of communication interfaces, including redundant PROFIBUS-DP bus, Ethernet, RS232, RS485 interfaces.

Ⅱ、LE series PLC for small and medium size: